Question

The electronic configuration 1s2, 2s2 2p6
3s1 3p1
correctly describes
Ο Α.
Ground state of Na
b
Excited state of Mg
C
Ground state of Si+
D
Excited state of Al3+​

Answer 1

Answer:

b

Explanation:

total electron is =12

and mg has 12 electron. and in exited state 1 e from 3s will transfer to 3p.

Answer 2

Answer:

(b) Excited state of Mg

Explanation:

• As you must be knowing that the atomic number of Mg is 12 which implies the total number of electron equals to 12. So it is excited state of Mg which is Mg+.
• Any quantum state of a system with a higher energy than the ground state is called an excited state.
• Excitation is defined as an increase in energy level above a predetermined starting point, which is usually the ground state but can also be an already excited state.

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